Largest building operators companies
Every US-listed building operators company we cover, 7 of them, ranked by market capitalisation, with revenue and earnings taken from their SEC filings.
Combined market cap
$163.139 B
0.2% of all US-listed value
Companies
7
Ranked #74 of 152 industries
Average
$23.306 B
Mean market cap per company
| # | Name | Market cap | Close | Session | Country |
|---|---|---|---|---|---|
| 1 | BrookfieldBN | $90.6B | $36.98 | -0.83% | Canada |
| 2 | Brookfield Asset ManagementBAM | $71.1B | $44.50 | -1.57% | Unknown |
| 3 | Piedmont Realty TrustPDM | $1.14B | $9.09 | +0.66% | United States |
| 4 | New England Realty Associates Limited PartnershipNEN | $138.0M | $49.75 | +0.00% | United States |
| 5 | Mays J WMAYS | $80.8M | $40.10 | +0.00% | United States |
| 6 | IntergroupINTG | $66.7M | $31.04 | +7.81% | United States |
| 7 | GyrodyneGYRO | $10.3M | $4.70 | +0.00% | United States |
All 7 companies. One row per company, with secondary share classes folded into their primary listing. Updated 9 Oct 2026.
Sectors building operators companies sit in
Other industries
Semiconductors 100Computer Software: Programming Data Processing 77Computer Software: Prepackaged Software 234Computer Manufacturing 10Biotechnology: Pharmaceutical Preparations 500Major Banks 245Industrial Machinery/Components 212Catalog/Specialty Distribution 30Business Services 92Commercial Banks 35Auto Manufacturing 29Integrated oil Companies 16Oil & Gas Production 116Investment Bankers/Brokers/Service 68Real Estate Investment Trusts 175Department/Specialty Retail Stores 13Telecommunications Equipment 84Electronic Components 21Beverages (Production/Distribution) 36Electric Utilities: Central 61Finance: Consumer Services 165Consumer Electronics/Appliances 23Biotechnology: Biological Products (No Diagnostic Substances) 160Medical Specialities 44All industries →
Figures come from SEC filings and daily market prices. Companies listed only outside the US are not covered: see methodology.